From 30bd423f4d9f77af78264d6582afda3670e2cb41 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Tue, 16 Mar 2021 15:57:06 -0400 Subject: [PATCH] xtensa rcu fix Signed-off-by: Liam R. Howlett --- arch/xtensa/kernel/syscall.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index 26ec2e67879a..490d71c907f4 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -84,6 +84,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, else addr = PAGE_ALIGN(addr); + /* Must hold mm_mt lock */ mas_for_each(&mas, vmm, ULONG_MAX) { /* At this point: (!vmm || addr < vmm->vm_end). */ if (TASK_SIZE - len < addr) -- 2.50.1